PTFE gaskets, ngenxa yokuthambile kwayo, isilinganiso esikhulu sokucindezela, ukubunjwa kalula endaweni enezinhlangothi ezintathu, ingafakwa emifantwini emincane kanye nomonakalo wokulungisa nokuxhuma ukuvuza, ikakhulukazi ekuxhumekeni kwe-asidi, i-alkali, ukugqwala kanye nemishini engeyona eyensimbi, enkulu -imikhumbi ye-diameter Umphumela uvelele, futhi ungavikela ngokuphumelelayo uxhumano lwedivayisi yezinto eziphukayo.
PTFE gaskets, ngenxa yokuthambile kwayo, isilinganiso esikhulu sokucindezela, ukubunjwa kalula endaweni enezinhlangothi ezintathu, ingafakwa emifantwini emincane kanye nomonakalo wokulungisa nokuxhuma ukuvuza, ikakhulukazi ekuxhumekeni kwe-asidi, i-alkali, ukugqwala kanye nemishini engeyona eyensimbi, enkulu -imikhumbi ye-diameter Umphumela uvelele, futhi ungavikela ngokuphumelelayo uxhumano lwedivayisi yezinto eziphukayo.
Kumadivayisi angewona ezensimbi njengengilazi, izitsha zobumba, igraphite, amapulasitiki, njll., kunomphumela ongavamile.Ingakwazi ukunxephezela futhi ilinganise amaphutha abangelwa ukukhubazeka, ukucutshungulwa kwemishini, ukuguquguquka okuqinile, ukungahambi kahle kokufaka, njll., ibhalansise amandla angalingani okulayisha kuqala, futhi ixazulule ngokuphumelelayo izinkinga zokuvuza zezikhungo ezihlukahlukene ngaphansi kwezimo eziyinkimbinkimbi.
Izinhlobo ze-PTFE gaskets
1. Pure PTFE gasket
Ama-gaskets e-PTFE ahlanzekile ama-gaskets ayisicaba, ama-gaskets amise okwe-V, izindandatho ze-piston, ama-valve gaskets ebhola, njll., aguqulwa ngomshini noma asikwe kuwo.I-PTFE induku, I-PTFE tube, futhiIshidi le-PTFE, ukumelana nokugqwala, ukulwa nokuguga, futhi okungaqhubeki.Izici ezinhle.Ingaba namandla amahle okusebenza phakathi kuka -100°C no-100°C.
Esinye isici salo mkhiqizo ukuthi uhlanzekile.Kwezinye izinto ezingathintana nayo, ama-gaskets e-PTFE ahlanzekile ngeke abangele noma yikuphi ukungcola kuwo.Le nzuzo iyenza isetshenziswe kabanzi ekudleni nasemithini.
2. Modified PTFE gasket
Lolu hlobo lwe-PTFE gasket luhlanganisa izigaba ezimbili, i-graphite egcwele kanye ne-glass fiber-filled.
I-tetrafluoroethylene gasket egcwele i-graphite i-PTFE ene-graphite njengesigcwalisi sokuxuba okugcwele komfaniswano kanye nokudubula okunokushisa okuphezulu.Le gasket ye-PTFE inokubekwa uphawu okuhle kakhulu kanye nokucindezelwa.
Amagasket e-PTFE agcwele i-fiber yengilazi asebenzisa i-glass fibre njengesigcwalisi.Le nto inezinto ezinhle zokubuyisela futhi ingcono kunezinto zendabuko ekusebenzeni.Iyakwazi ukumelana nokugqoka futhi imelana namakhemikhali futhi ifaneleka kakhulu ezimbonini zamaphepha nezokudla.
3. Inwetshiwe PTFE Gasket
Ama-gaskets e-PTFE anwetshiwe angamelana nokugeleza okubandayo nokukhasa, futhi abe nenzuzo yokuba lula ukuwafaka, ikakhulukazi amandla okumelana namazinga okushisa aphansi kakhulu.Ukusebenza kokuvala kwalesi sici kuthembeke kakhulu, futhi kubuye kumelane nokuqhuma.Ifaneleka ngokukhethekile ezindaweni ezimaholoholo.
8 izinzuzo PTFE gasket
1. I-PTFE gasket ngokwayo inokumelana nokugqwala okuphezulu, ukusebenza komzimba okuzinzile, ukumelana nokushisa okuphezulu nokuphansi, futhi ifinyelela ukusebenza kwayo okuhle kokuvala.Ngokushintsha amandla okucindezela kwebhande lensimbi eliboshwe, ukuminyana (ukuqina) kwe-gasket eboshiwe kungashintshwa ukuze kuhlangabezane nezidingo zezinhlelo zokusebenza ezihlukahlukene.Isetshenziswa kabanzi ku-petrochemical, imishini, amandla kagesi, i-metallurgy, ukwakhiwa kwemikhumbi, imithi, amandla e-athomu, kanye nezimboni ze-aerospace.
2. I-PTFE gaskets imelana nesimo sezulu, futhi i-PTFE inempilo engcono kakhulu yokuguga phakathi kwamapulasitiki.I-PTFE gasket ngokwayo inokumelana nokugqwala okuphezulu, ukusebenza komzimba okuzinzile, ukumelana nokushisa okuphezulu nokuphansi, futhi izuze ukusebenza kahle kokuvala.Isetshenziswa kakhulu ezimbonini ze-petroleum, amakhemikhali, ezemithi, amandla kagesi, nezimboni zensimbi.
3. I-PTFE gasket ayinamatheli.I-PTFE inokudonsa okuncane kakhulu kwendawo phakathi kwezinto eziqinile futhi ayinamatheli kunoma yiziphi izinto.
4. I-PTFE gaskets imelana namazinga okushisa aphansi futhi inokuqina okuhle komshini;ngisho noma izinga lokushisa lehlela ku -196°C, bangagcina ubude obungu-5%.Ifanele ukuvala izingxenye lapho izinga lokushisa nokucindezela kushintsha kakhulu.Kuyisici sokuvala esimile sokuxhunywa kwe-flange njengamapayipi, ama-valve, amaphampu, izishintshisi zokushisa, imibhoshongo, imigodi, nezimbobo zezandla.
5. Imisebenzi kanye nezinzuzo ze-PTFE gaskets zimi kanje.I-medium efanelekile ihlanganisa cishe zonke izingxenye zamakhemikhali ezifana namanzi, amafutha, isisombululo se-asidi, isisombululo se-alkali, njll.
6. I-PTFE gasket ayinabo ubuthi futhi i-PTFE ayisebenzi ngokomzimba, futhi ayinakho ukusabela okubi njengemithambo yegazi yokwenziwa nezitho ezifakwe emzimbeni isikhathi eside.
7. I-PTFE gaskets imelana nokugqwala, ayisebenzi kumakhemikhali amaningi nezincibilikisi, futhi ingamelana nama-asidi aqinile nama-alkali, amanzi nezinyibilikisi ezihlukahlukene eziphilayo.Le gasket inokucindezela okuhle nokusebenza kokuqina, ukuvala iziteshi eziningi, nomsebenzi othile wokuziqinisa, ongaqeda ithonya lokucindezela, ukuguquka kwezinga lokushisa, nokudlidliza kwemishini.
8. Ngaphansi kwezinga lokushisa eliphezulu, izinga lokushisa eliphansi, i-vacuum ephezulu, ukudlidliza kokushaqeka, nezinye izinguquko zomjikelezo nezimo ezihlukahlukene ezinzima, kugcina ukusebenza kwayo okuhle kakhulu kokuvala.Ngokushintsha inhlanganisela yezinto ze-gasket, inkinga yokuguguleka kwamakhemikhali we-gasket ngemidiya ehlukahlukene ingaxazululwa.I-flange surface ayiboshiwe, okwenza kube lula ukugcinwa nokushintshwa.
9. I-PTFE gaskets imelana nokushisa okuphezulu, futhi i-PTFE ingasetshenziswa ekushiseni okusebenzayo kuka-250°C.
Yiziphi izici okufanele zicatshangelwe lapho ukhetha ama-gaskets e-PTFE
I-PTFE gaskets isetshenziswa ezinhlotsheni eziningi zemishini.Ukuze kuqinisekiswe ukusebenza kahle, izici okufanele zicatshangelwe ekukhetheni ama-gaskets e-PTFE zimi kanje:
1. Okumaphakathi: Umbuzo wolimi ulula uma kuqhathaniswa.Udinga nje ukunaka eminye imibuzo emincane ekhethekile, njengamasilinda omsebenzi we-metallurgical avame ukusebenzisa i-water-glycol kanye ne-phosphate ester hydraulic oil.
2. Izinga lokushisa: I-NBR emelana nokubanda kufanele icatshangelwe uma izinga lokushisa lingu-20～-40℃.Okubalulekile kwe-NBR kuzoqinisa okokusebenza ngaphansi kwemvelo yezinga lokushisa eliphansi, okuholela ekuvuzeni.
3. Ukucindezela komthelela: Lapho imishini yokwakha iqalwa futhi ivalwa, ukucindezela komthelela wayo kukhulu kakhulu kunokucindezela okujwayelekile kokusebenza, ngakho-ke kuvame ukusetshenziswa njengesigxivizo esiyinhloko esinokumelana nomthelela kanye negebe lokukhama i-HBY noma i-SPGW enokumelana nengcindezi kuze kufike ku-70MPA.
Isikhathi sokuthumela: Aug-06-2020